How fubar is this
- Thread starter EastBranch
- Start date
Barnes_270
Regular
- Location
- Langley, BC
Are they both .366? Is the smaller one actually a mislabelled .358? Do they weigh the same?
In all seriousness, are you a good enough shot for that difference to matter?
More importantly, is there lot numbers on the boxes, and do they match?
Do all the bullets of one box match?
If you understand how bullets are swaged, you will understand that among other things, dies wear out and are replaced, and cannelure machines get set to different heights as required.
If all the bullets in a box match, load and shoot one box, before you load and confirm the second.
More importantly, is there lot numbers on the boxes, and do they match?
Do all the bullets of one box match?
If you understand how bullets are swaged, you will understand that among other things, dies wear out and are replaced, and cannelure machines get set to different heights as required.
If all the bullets in a box match, load and shoot one box, before you load and confirm the second.
Further to my last, are you actually using the cannelure groove to crimp in to? If not, then where it is, just doesn't matter all that much.
If you are, compare the distance from the tip, or more accurately, from the reference on the ogive, to the groove and see how you fare. that will be the controlling factor if trying to seat off the lands by a particular dimension.
Unless your load is teetering in to the peak of a vibration node that is hard to find, my bet is that there will be very little, if any, noticeable difference from the difference in seating depth.
My best guess is that you got two different lots, likely from two very separate production runs, and possible even from two completely different sets of bullet making machinery.
The weights are good.
If you are loading to OAL for magazine fit, pick a load that works.
And as snikketty as my first question seemed to be, 'Looky nailed it. You can lose your mind chasing details that don't make all that much difference for the intended purpose of the ammo.
If you are shooting long range target for competition, that is a whole different game than general purpose, minute of Moose rib ammo that needs to feed reliably and shoot well enough to have faith in.
If you are, compare the distance from the tip, or more accurately, from the reference on the ogive, to the groove and see how you fare. that will be the controlling factor if trying to seat off the lands by a particular dimension.
Unless your load is teetering in to the peak of a vibration node that is hard to find, my bet is that there will be very little, if any, noticeable difference from the difference in seating depth.
My best guess is that you got two different lots, likely from two very separate production runs, and possible even from two completely different sets of bullet making machinery.
The weights are good.
If you are loading to OAL for magazine fit, pick a load that works.
And as snikketty as my first question seemed to be, 'Looky nailed it. You can lose your mind chasing details that don't make all that much difference for the intended purpose of the ammo.
If you are shooting long range target for competition, that is a whole different game than general purpose, minute of Moose rib ammo that needs to feed reliably and shoot well enough to have faith in.
The dies that make bullets only last for a certain number of bullets. When the dies wear out they are replaced, and the lot # changes.
Each lot # is slightly different. Sometimes there is a deliberate (small) change.
So if you develop a load that is really, really good, go out and buy more of the same bullet lot #.
OP, you are just commenting on the fact that there is a difference in lot #s. Duh. Ya.
Each lot # is slightly different. Sometimes there is a deliberate (small) change.
So if you develop a load that is really, really good, go out and buy more of the same bullet lot #.
OP, you are just commenting on the fact that there is a difference in lot #s. Duh. Ya.
Sometimes the change is deliberate and significant.
Sierra, for example, changed the angle of the boattail of the 180 Match King. The long boat tail was popular for 1200 yard matches. After the change we had to switch to the 190 g bullet to get the long boattail.
As for the 168 Sierra match, I recall when they changed from a FMJ to a HP. I still have some of the original FMJs.
Sierra, for example, changed the angle of the boattail of the 180 Match King. The long boat tail was popular for 1200 yard matches. After the change we had to switch to the 190 g bullet to get the long boattail.
As for the 168 Sierra match, I recall when they changed from a FMJ to a HP. I still have some of the original FMJs.
